Annual mean 7°C · wettest around January · prevailing wind SW
Warmest
21.2 °C
Coldest
-3.5 °C
Wettest
31%
Windiest
5.9 m/s
Prevailing
SW
5.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Tallinn over the whole year is 7°C. July is the hottest month, with highs of about 20°C; January is the coldest, with lows of about -3°C. The rainy (wet) season in Tallinn runs from October to February, peaking in January with a 24% chance of rain on a given day. The dry season is March to July; May is the driest month, at 8%. Winds in Tallinn are highest in January, averaging 5.1 m/s (18 km/h), and lightest in August, at 4.0 m/s (14 km/h). The prevailing wind is from the SW. The clearest skies in Tallinn come in June, when the sky is typically 38% covered; December is the cloudiest month, at 84%.
Month by month Tallinn climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-2°C
-3°C
-8°C
24%
82%
5.1 m/s
0
0
0
February
-1°C
-2°C
-7°C
23%
76%
5.0 m/s
0
0
0
March
2°C
-1°C
-4°C
14%
62%
4.7 m/s
0
0
2
April
7°C
2°C
1°C
15%
50%
4.6 m/s
2
0
18
May
13°C
8°C
8°C
8%
38%
4.2 m/s
18
1
57
June
18°C
14°C
15°C
13%
38%
4.2 m/s
49
6
73
July
20°C
16°C
18°C
13%
44%
4.1 m/s
66
12
70
August
19°C
15°C
17°C
17%
48%
4.0 m/s
68
6
77
September
15°C
11°C
12°C
13%
54%
4.2 m/s
31
1
75
October
9°C
6°C
4°C
18%
69%
5.0 m/s
1
0
32
November
4°C
3°C
-2°C
20%
83%
5.0 m/s
0
0
6
December
-0°C
-1°C
-6°C
21%
84%
5.0 m/s
0
0
0
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Tallinn weather by season
Year round, Tallinn has days of about -2°C at their warmest in January, its coolest month, and 20°C in July, its warmest; the coolest hours of the day run from -3°C to 16°C through the year, and the average temperature over the year is 7°C around the clock. Rain is most likely around January and least likely around May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Tallinn weather in winterDecember to February
High -1°CLow -2°CRain 23%
Winter in Tallinn has typical daily highs of about -1°C and lows of about -2°C, with a 23% chance of rain on a given day.
Tallinn weather in springMarch to May
High 7°CLow 3°CRain 13%
Spring in Tallinn has typical daily highs of about 7°C and lows of about 3°C, with a 13% chance of rain on a given day.
Tallinn weather in summerJune to August
High 19°CLow 15°CRain 14%
Summer in Tallinn has typical daily highs of about 19°C and lows of about 15°C, with a 14% chance of rain on a given day.
Tallinn weather in autumnSeptember to November
High 9°CLow 7°CRain 17%
Autumn in Tallinn has typical daily highs of about 9°C and lows of about 7°C, with a 17% chance of rain on a given day.
When is the rainy season in Tallinn?
The rainy (wet) season in Tallinn runs from October to February, peaking in January with a 24% chance of rain on a given day. The dry season is March to July; May is the driest month, at 8%.
What time of year is Tallinn windiest?
Winds in Tallinn are highest in January, averaging 5.1 m/s (18 km/h), and lightest in August, at 4.0 m/s (14 km/h). The prevailing wind is from the SW.
What is the average temperature in Tallinn year round?
The average temperature in Tallinn over the whole year is 7°C. July is the hottest month, with highs of about 20°C; January is the coldest, with lows of about -3°C.